TeX, LaTeX and Friends

cfr

1:45 AM

@PauloCereda Does LuaTeX provide a complete Lua interpreter?

Joseph Wright

5:53 AM

@cfr :-)

@cfr Yes

@cfr Lua is 'small' (one of the reasons it was picked): it's quite possible to include all of Lua in a few MB

@cfr LuaTeX builds in a selection of libraries (written in C), most obviously those related to TeX (tables kpse, tex, etc.), but also e.g. unicode

Joseph Wright

6:22 AM

@DavidCarlisle I see you have a plan to get the graphics drivers back in one place

David Carlisle

@JosephWright Karl actually:-) where did you see that? I just had some email with him last night:-)

Joseph Wright

7:30 AM

@DavidCarlisle One overnight cc'd to me, sent to Akiro

David Carlisle

7:54 AM

@JosephWright ah

Nasser

8:52 AM

Do I need both

\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}

or just \usepackage[T1]{fontenc}? I am always confused with these things. I use lualatex now. Thanks.

Joseph Wright

@Nasser For LuaTeX, neither of the above!

@Nasser For pdfTeX, fontenc is about fonts output and inputenc is about the encoding of your input file

@Nasser For UTF-8 engines (XeTeX, LuaTeX), you are very strongly encouraged to simply \usepackage{fontspec}

egreg

@Nasser See this, for pdflatex

Nasser

@JosephWright thanks. But when I did the above, i..e \usepackage{fontenc}, I get wrong PDF shown? The letters are wrong. This is using Miktex, please see:

egreg

110

Q: fontenc vs inputenc

I just don't seem to get it. So I come from the german speaking part of Switzerland and naturally I need ä ü ö a lot when I write german texts. So in LaTeX I have the option to go via "a "u "o which isn't really comfortable, or I can use an additional package. So now the confusion starts. I can...

Nasser

@egreg thanks, but this is all over my head. I just need to know what to use, that is all :)

Joseph Wright

9:02 AM

@Nasser I'd need an example

Nasser

When I compile this:
\documentclass[12pt]{scrbook}
\IfFileExists{luatex85.sty}{\usepackage{luatex85}}{}
\usepackage{fontenc}

\begin{document}

Wolfram|Alpha has a whole collection¹ of parametric curves that create

Bü

\end{document}

egreg

@Nasser As @JosephWright says, both with pdflatex and neither with LuaLaTeX

Nasser

I get this PDF

egreg

@Nasser \usepackage{fontenc} does exactly nothing

Joseph Wright

@Nasser You need fontspec not fontenc

Nasser

9:03 AM

egreg

@Nasser With that code you get a “Missing character” warning in the log file. You need fontspec

Nasser

ok will fix :)

Ok, fixed, but gives error !

\documentclass[12pt]{scrbook}
\IfFileExists{luatex85.sty}{\usepackage{luatex85}}{}
\usepackage{fontspec}

\begin{document}

Wolfram|Alpha has a whole collection¹ of parametric curves that create

Bü

\end{document}

Here is the error

LaTeX error: "kernel/property-unknown" The key property '.choice_code:n' is unknown. For immediate help type H <return>. }

Joseph Wright

@Nasser You've got mismatched versions of fontspec and l3kernel. This tends to happen with MiKTeX if you don't update both in 'user' and 'admin' modes.

Nasser

Yes, I am using Miktex 2.9. Ok, will update, thanks.,

I am doing update now and will try again.

Nasser

9:23 AM

@JosephWright it worked now with miktex after the upgrade! I will just use \usepackage{fontspec} from now on for all my files. Thanks.

btw experts, I still have this in my common include Latex. I wonder if is still needed for TL 2016 and for Luatex

\usepackage{ifluatex} %must be FIRST thing. This makes import work with lualatex
\ifluatex
\def\pdftexversion{140}
\fi
It does not seem to cause problems. (I have so much stuff in my common include Latex file and sometimes I have no idea when I added and why it is there :)

Joseph Wright

@Nasser No, with an up-to-date system this won't be needed

Nasser

@JosephWright thank you. Will remove it then !

I think I got it from this question tex.stackexchange.com/questions/267572/…

David Carlisle

9:47 AM